Topic: Suomi-NPPCERES FSW Patch Upload and Activation March 23, 2018

Date/Time Issued: March 23, 2018 1755Z

Product(s) or Data Impacted: All CERES Sensor Data

Date/Time of Initial Impact: March 23, 2018 1645Z

Date/Time of Expected End: March 23, 2018 2011Z

Length of Outage: See Details.

Details/Specifics of change: On March 23, 2018, S-NPP CERES will be commanded into Diagnostic and the Standby Modes to permit the upload and activation of a Langley Research Center (LaRC) requested FSW patch that contains a modified instrument sequence for slot fourteen
This is a modified version of the full internal calibration, where the SWICS cycles through three intensity levels for twenty scans each while the black body is off. CERES will produce the Diagnostic APID while in Diagnostic and Standby Modes, including during the Memory Dump.

The timeline of events for this maneuver are provided below:

SNPP Svalbard 33175 16:45:25 Z - 16:57:05 Z CERES will be commanded to Diagnostic Mode, FSW memory loaded, and commanded to Stanby.
SNPP Svalbard 33175 18:28:29 Z - 18:39:15 Z CERES commanded to Crosstrack mode and restored to nominal operations.

Contact Information for Further Information: ESPC Operations at at 301-817-3880

Web Site(s) for applicable information: N/A

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